at 

 v.! 



TO 



THOMAS BELL, F.R.S. 



PROFESSOR OF ZOOLOGY IN KINg's COLLKGE, LONDOiY, &C. 



My dear Bell, 



Independently of the pleasure with which I embrace this opportunity 

 of expressing the feelings of Friendship and Esteem which I have long 

 entertained towards you, there is no one to whom the present Work could 

 with more propriety be dedicated than the acute Observer who was the 

 first to point out Pathological Phenomena in the Human Teeth, consistent 

 only with a higher organization and mode of development than it has been 

 usual to attribute to them, but which it is the chief object of the following 

 pages to demonstrate as common to the teeth of all vertebrate animals. 



I am, 



Your's, very sincerely, 



Richard Owen. 



LONDON, .TUNE 18, 1845. 



